Typewriting-machine support



Aug. 25, 1925. 1,551,516

J. MCGOVERN TYPEWRITING MACHINE SUPPORT Filed Aug. 18, 1920 E5 0 /7 v fF 3 5*? 55 bers ofthe outer frame (not Patented Aug 25, 1925.

UNITED STATES PATENT OFFICE.

JAMES KOGOVEBN, OI BROOKLYN, NEW YORK, ASSIGNOB T UNDEBWOOD TYPE-1WRITER COIPANY, 0! NEW YORK, N. Y A CORPORATION 01' DELAWARE.

mammal-1mm]: BUIPOBT.

, means for attaching and detaching a typewriter from the base-board,and is herein illustrated in connection with the Underwood standardportable typewriter, since the necessity for fastening and unfastening amachine of this type occurs frequently. .4 feature of one form of thisinvention is the provision of a device for looking a ty writer to abase-board, which! canbe re eased simply by the movement of a singlelever actuated by a finger-piece.

Another feature is the provision of a simple and efficient clampingdevice to fasten the feet of a typewriter to a baseboard. According tothe present invention,

in the embodiment thereof herein disclosed each of the four feet uponwhich the typewriter usually rests is provided with aperipherally-grooved disk or washer. The base. is provided with fourreceptacles or cups, each of which has a flange adapted to be insertedwithin the groove in the corresponding footdisk, to lockthe machine inosition.

Other features and advantageswill hereinafter appear: In theaccompanying drawings,

Figure 1 is a perspective view, showing the device in locking engagementwith the feet of theijmachine, the inner side members of which arepartly shown.

.Figure 2 is an enlarged perspective of one of the" rear cups.

Figure 3 is an end view of the device in Figure 1, the base-boardbeingsectioned.

Figure 4 is an enlarged perspective of the right forward cup, showingthe looking mechanism.

Figure 5 is a perspective of a modified form of cup.

Figure 6 is a cros section of the spring detent in looking engagementwith the operating lever.

In the portable typewriter referred to above, side members 1 adjoin thesidememshown), and

' baseboard,

length a cup com Application fled August 18, 1820. flerial No 404,357.

are provided at their lower edges with flanges 2, formed witlrenlargements 3 at their ends. To these enlargements or lips 3 aregenerally fastened the rubber or felt plugs to form feet upon which themachine rests. In the present invention, however, there is insertedbetween each lug and each lip 3 a disk or washer to orm a part ofthe-foot and having a circumferential' groove 6 centrally disposed onits outer periphery, thus forming upper and lower flanges 4, 5. Theplugs and disks are fastened to the lips by means of a screw 8, havmg ashoulder 9 to limit its inward travel, and thus fix the distance betweenthe head of the screw and the washer, as well ins t; clamp the grooveddisk against the The fastening device or locking device is mounted uponthe base-board B, and comprises two rear and twofor'ward cups. The rearcups 10 each have a base-plate 40, apertured at 41 for the reception ofan attaching screw, prongs 11 being formed on the base-plate or pressinginto the board to hold the cup in position. Upon the base-plates aresemi-cylindrical walls 13,

provided at the top with semi-circular, horizontal flanges 12, adaptedto co-operate with the grooves 6 of the disks on the machine. When theflanges 12 enter the grooves 6, they engage over the offset or shoulderformed by the upper side of the lower flange 5, and hold the rear partof the machine firmly down upon the base-board B.

The semi-cylindrical walls 13 of the cups embrace the parts 5 and 7 ofthe rear feet, engaging partly around these feet at the rear andlaterally. The semi-circular walls 13 face the rear edge ofthe board,while the cut-away or open portions of the cups face the forward edgeand are adapted to allow the rear feet of the machine to be inserted inthe cups from the front, by pushing the machine rearwardly on thebase-board B, and to be withdrawn from the cups by pulling the machineforwardly.

The forward cups form portions of movable levers 14 and 23. Lever 14 ispivoted at 15 by means of a bolt 16 passing through the and carriesintermediate its of a semi-cylindrical wall 17 and a horizontal topflange 18. The extreme forward end of lever 14 carries a finger-piece19. To the lever 14, intermediate its length, is pivoted a link 20 at21, said link being pivoted at its other end at 22 to the lever 23.Lever 23 is pivoted intermediate its length at 24, and carries a cuphaving a semi-cylindrical Wall 25 provided with a semi-circular flange,similar to the cup carried by lever 14. These forward cups have theirout-away portions faced outwardly, while their semi-cylindrical walls orbacks are turned toward each other. By means of this arrangement andlinkage, it will be seen that as end 19 of lever 14 moves from left toright, that is, from open to closed position, end 26 of the lever 23moves from right to left, also from open to closed position. In otherwords, movement of the finger-piece 19 will effect a simultaneousmovement of the lever end 26, so that both cups will engage or disengagethe front feet of the machine at the same time. The semi-cylindricalwalls of the forward cups engage partly around or embrace the front feetof the machine, the top flanges of these cups entering the grooves 6 andengaging over the offset or shoulder formed by the upper side of thelower flange 5, so as thereby to hold the front of the machine firmlydown upon the base-board B, and the semi-cylindrical walls of these cupsprevent sliding movement of the machine in any direction.

Fixed guides 27 and 29 are provided for the ends of levers 23 and 14,respectively, the guides having raised portions 28 and 30 under whichthe ends of the levers may oscillate. One of the guides, preferablyadjacent the finger-piece 19, is provided with a latching device in theform of a spring detent 31, lying flat upon elevated portion 30 of guide29 to which it is fastened at 32. A pin 33 having a rounded lower end isrigidly attached to the spring, and projeots through portion 30. Whenlever 14 is shifted to closed or locking position, it strikes therounded end of pin 33, lifting the pin against the action of the spring.The pin lodges in a depression 34 in bar 14, and is held in saidposition by the spring 31.

In Figure 5 is shown a modified cup device adapted for use especiallywhere a more rigid mounting is desired. The device is in the form of acup-carrying lever 35, similar to lever 14, but is provided withopenings 36 through which pass screws 37. One end of the lever ispivoted as at 15 or 24, and the other end is swung into lockingengagement with the disk, and fixed in position by a screw. In this casethe sprmg detent is, of course, unnecessary. Since the mounting is morepermanent in its nature, the linkage may be dispensed with, each of thetwo forward feet being fixed in position separately. It is apparent alsothat the cup-carrying levers or locking members 35 may be used on allfour feet,

the rear cups being then held in place by screws 37 instead of bycentral screws and prongs 11. If the linkage and levers are retained,as-shown in Figure 1, the rear cups alone may be supplanted by themembers 35.

Briefly, theoperation of the device is as follows: All four feet of themachine being provided wit-h the grooved disks, the two rear feet areinserted in the rear cups (which'may be of the type 10 or type 35), sothat the flanges of the cups project into the grooves of the disks.Lever 14, being origin-ally toward the left, or open, position, is movedto the right until pin 33 lodges in depression 34, the flanges of theforward cups being forced into the grooves of the disks. If the levers14 and 23 are replaced by levers 35, the spring detent is unnecessary,and if the linkage is dispensed with, each lever 35 is. fixed inposition separately.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. The combination with a typewriter frame, of depending feet on saidframe, each comprising a disk grooved circumferentially on itsperiphery, and a base-board provided with cups, one for each foot, saidcups each having a vertical semi-cylindrical surface and a horizontalflange adapted to co-operate with the grooves of said disks, twoadjacent cups being fixed in position, and the other two being movableto allow insertion and withdrawal of the typewriter.

2.v The combination with a typewriter frame, of depending feet on saidframe, each comprising a disk grooved circumfer entially on itsperiphery, a base-board provided with two fixed adjacent cups, eachhaving a vertical semi-cylindrical surface and a horizontal flangeadapted to cooperate with the grooves of said disks, and two leverspivoted on said board each carrying intermediate its length a cupsimilar to the fixed cups, each cup having a vertical semi-cylindricalsurface and a horizontal flange, said levers being adapted to be swun'g,so that. the flanges of the cups on said levers are brought intoengagement with the grooves in the disks on the two remaining feet ofthe typewriter to lock the typewriter to the base-board.

of said disks, two levers pivoted on said board, each carryingintermediate its length surface and a horizontal flange,

a cup similar to the fixed cups, each cup having a verticalsemi-cylindrical surface and a horizontal flange, said levers beingadapted to be swung, so that the flanges of the cups on said levers arebrought into engagement with the grooves in the disks on the tworemain-- ing feet of the typewriter, and a linkage between said leverswhereby movement ofone produces a simultaneous movement of the other tolock or release the typerwriter feet.

4. The combination with a typewriter frame, of depending feet on saidframe, each comprising a disk grooved circumferentially on itsperiphery, a base-board provided with two fixed adjacent cups, eachhaving a vertical semi-cylindrical wall and a horizontal flange adaptedto co-operate with the grooves of said disks, an operating lever pivotedat its end on said base-board, a second lever pivoted on said boardintermediate its length, and a link pivoted at one end on said operatinglever intermediate the length thereof, and pivoted at its other end onsaid second lever at the end thereof, each of said levers carryingintermediate its length a cup similar to the fixed cups, each cup havinga vertical semi-cylindrical the flanges of the cups on said levers beingadapted to be brought into engagement with the grooves of said disksupon movement of said operating lever acting through the aforementionedlinkage to produce a simultaneous movement of both cups to lock orrelease the feet of the typewriter.

5. The combination with a typewriter frame, of depending feet on saidframe, each comprising a disk grooved circumferentially on itsperiphery, a base-board provided with two fixed adjacent cups, eachhaving a vertical semi-cylindrical wall and a horizontal flange adaptedto co-operate with the grooves of said disks, an operating lever pivotedat its end on said baseboard, a second lever pivoted on said boardintermediate its length, a link pivoted at one end on said operatinglever intermediate the length thereof, :and pivoted at its other end onsaid second lever at the end thereof, each of said levers carryingintermediate its length a cup similar to the fixed cups, each cup havinga vertical semi-cylindrical surface and a horizontal flange, the flangesof the cups on said levers being adapted to be brought into engagementwith the grooves of said disks upon movementof said operating leveracting through the aforementioned linkage to produce a simultaneousmovement of both cups to lock or release the feet of the typewriter, andmeans for holding the operating lever in looking position.

6. The combination with a typewriter frame, of depending feet on saidframe,

each comprising a disk grooved circumferentially on its periphery, abase-board provided with two fixed adjacent cups, each havin a verticalsemicylindrical wall and a horizontal flange adapted to co-operate withthe grooves of said disks, an operating lever pivotedv at its end onsaid base-board, a second lever pivoted on said board intermediate itslength, a link pivoted at one end on said 0 crating lever intermediatethe length ,thereo and pivoted at its other end on said second lever atthe end thereof, each of said levers carrying intermediate its length acup similar to the fixed cups, each cup having a verticalsemi-cylindrical surface and a horizontal flange, the flanges of thecups on said levers being adapted to be brought into engagement with thegrooves of said disks upon movement of said operating lever actingthrough the aforementioned linka e to produce a simultaneous movement 0both cups to lock or release the feet of said typewriter, a guide forthe end of each of said levers, spring means on the guide of theoperating lever, said operating lever having a depression on itssurface, and a pin depending from said spring means and co-operatingwith said depression to lock the operating lever in position.

7. The combination with a typewriter frame having depending feet, of twoadjacent feet, each comprising a disk grooved circumferentially on itsperiphery, a baseboard, two levers pivoted on said base-board, eachcarrying intermediate its length acup having a vertical semi-cylindricalwall and a horizontal flange, each flange being adapted to engage agroove of one of said disks, and a linkage between said levers wherebymovement of one produces a simultaneous movement of the other to lock orrelease the typewriter feet.

8. The combination with a typewriter frame having depending feet, or twoadjacent feet, each comprising a disk grooved circumferentially on itsperiphery, a baseboard, an operating leverpivoted at its end on saidbase-board, a second lever pivoted on said board intermediate itslength, and a link pivoted at one end on said operating leverintermediate the length thereof, and pivoted at its other end on saidsecond lever at the end thereof, each of said levers carryingintermediate its length a cup, each cup having a verticalsemi-cylindrical surface and a horizontal flange, the flanges of saidcups being adapted to be brought into engagement with said disks uponmovement of said operating lever acting through the aforementionedlinkage to produce a simultaneous movement of both cups to lock orrelease the feet of the typewriter.

9. The combination with a typewriter frame having depending feet, of twoadjano I cent feet, each comprising a disk grooved circumferentially onits periphery, a baseboard, an operating lever pivoted at its end onsaid base-board, a second lever pivoted on said board intermediate itslength, a link pivoted at one end on said operating lever intermediatethe length thereof, and pivoted at its other end on said second lever atthe end thereof, each of said levers carrying intermediate its length acup, each cup having a vertical semi-cylindrical surface and ahorizontal flange, the flanges of said cups being adapted to be broughtinto engagement with said disks upon movement of said operating leveracting through the aforementioned linkage to produce a simultaneousmovement of both cups to lock or release the feet of the typewriter, and.means for holding the operating lever in looking position.

10. The combination with a typewriter frame having depending feet, oftwo adjacent feet, each comprising a disk grooved circumferentially onits periphery, a baseboard, an operating lever pivoted at its end onsaid base-board, a second lever pivoted on said board intermediate itslength, a link pivoted at one end of said operating lever intermediatethe length thereof, and pivoted at its other end on said second lever atthe end thereof, each of said levers carrying intermediate its length acup, each cup having a vertical semi-cylindrical surface and ahorizontal flange, the flanges of said cups being adapted to be broughtinto engagement with said disks upon movement of said operating leveracting through the aforementioned linkage to produce a simultaneousmovement of both cups to lock or release the feet of the typewriter,guides for the ends of said levers, spring means on the guide of theoperating lever, said operating lever having a depression on itssurface, and a pin depending from said spring means and co-operatingwith said depression to lock the operating lever in position.

11. The combination of a typewriting machine having a cushion-foot, abaseboard on which said foot rests, said foot having a recessed cap, alocking piece mounted on said baseboard and engageable with the recessin said cap to hold the machine against lifting, and means for movingsaid locking piece into said recess.

12. A locking device for the leg of a typewriter comprising a disk onsaid leg, said disk being grooved circumferentially on its periphery andcentrally thereof to form two flanges, one on either side of the groove,a base-board, and a cup mounted upon said board for lateral movement andhaving a vertical Wall and a horizontal flange adapted to co-operatewith the groove in said disk and held against vertical movement by theupper and lower flanges of said disk, said vertical wall cut outlaterally to permit the lateral movement of the cup.

13. A locking device for the leg of a typewriter comprising a disk onsaid leg, a ase-board, and a cup mounted on said board for lateralmovement and having a horizontal flange to catch upon said disk, saidcup cut away on one side to permit lateral movement away from the leg,said cup having laterally-disposed flanges adapted to rest on saidboard, for fastening said cup to said board.

14:. In combination, a b-aseboand, a type- Writing machine having fourcushioned legs resting thereon, two open-sided cups embracing two ofsaid legs and co-operating wlth the latter to retain them on saidbaseboard, open-sided cups embracing the other legs, and means on saidbaseboard movable beneath said machine for simultaneously retracting thefirst-named cups from the adjacent legs.

15. The combination with a base-board and a typewriter having feet torest thereon, of means to look all of the feet of the typewriter to thebase-board, and a single manually-operable device for operating thelocking means concomitantly.

16. The combination with a typewriter and a base-board, of a pluralityof pivoted devices for locking the typewriter to the base-board at aplurality of spaced locations, and a single manually-o erable linkageinterconnecting said plura ity of devices for concomitantly releasingthe the baseboard or locking it t said locations.

17. Means for locking the foot of a typewriter to a base-board,comprising a hook adapted to engage partly around and partly over thefoot, the foot being shaped to permit such engagement, said hook beingopen at one side to provide for locking and unlocking movement, a leverpivoted on the ereto at all of swinging it into or out of lockingengagement with the foot, and means for detaining said hook at thelocking position.

18. The combination with a base-board and a typewriter having feet torest thereon, of a plurality of releasable locking members movablymounted on the base-board for engagement with a corresponding pluralityof the feet of the typewriter in such manner as to prevent upwardmovement of these typewriter feet away from the baseboard, these feetbeing shaped" to permit such engagement, said members being alsoengageable with these feet to prevent sliding movements of thetypewriter on the base-board, said locking members being constructed andarranged to be moved laterally into or out of locking engagement withthe feet of the typewriter, and connections betypewriter from base-boardand carrying said hook for no tween said locking members for moving themconcomitantly into or out of locking engagement with the feet.

19. The combination with a base-board and a typewriter having feet torest thereon, of a pair of releasable locking members movably mounted onthe base-board and engageable with a corresponding pair of the feet ofthe typewriter to prevent upward movement of these typewriter feet awayfrom the base-board, these feet being shaped to permit such engagement,said members being also engageable with these feet toprevent slidingmovements of the typewriter on the base-board, said locking membersbeing constructed and arranged to be moved laterally in oppositedirections into or out of locking engagement with the feet of thetypewriter, a pair of manually-operable substantially parallel leverspivoted on the base-board and each carrying one of said locking membersfor swinging said member into or out of locking engagement with thefoot, and releasable means for detaining said levers at the lockingposition.

20. The combination with a base-board and a typewriter having feet to,rest there-- on, of a pair of releasable locking members movably mountedon the base-board and engageable with a corresponding pair of the feetof the typewriter to prevent upward movement of these typewriter feetaway from the base-board, these feet being shaped to permit suchengagement, said members being also engageable with these feet to.prevent sliding movements of the'typewriter on the base-board, saidlocking members being constructed and arranged to be moved laterally inopposite directions into or out of locking engagement with the feet ofthe typewriter, a pair of substantally parallel levers pivoted on thebase-board and each carrying one of said locking members for swingingsaid member into or out of locking engagement with the foot, a linkconnecting said levers, for imparting concomitant looking or unlockingmovement to said levers, whereby the manual actuation of one of saidlevers will actuate both of them, and a releasable latching device fordetaining the locking members at the locking position.

21. The combination of a baseboard, a typewriter having four legsengaging said baseboard, a pair of retainers secured on said baseboardand having lateral openings into which two of said legs reject, thelatter legs being held against lifting in their retainers, another pairof retainers movable relatively to the other two legs and engaging themat opposite points respectively, to restrain movement of the latter inopposite directions, the movable retainers also preventing thefirst-named legs from moving out of said lateral openings, and aconnecting bar extending movably under said typewriter and operated toactuate said movable retainers concomitantly.

JAMES MGGOVERNQ

